Audio-Technica ECM999 Measurement Microphone, Omnidirectional Condenser, 20Hz-20kHz, 132dB SPL, XLR, Black

Measurement Microphone for Room Calibration

The Audio-Technica ECM999 is an omnidirectional condenser microphone designed for accurate room calibration, acoustic testing and speaker measurement. Its flat 20 Hz to 20 kHz response captures true room acoustics for home theatre setup and professional audio analysis. It handles sound pressure levels up to 132 dB SPL, making it suitable for both quiet and high-volume environments. The microphone requires 12 V to 52 V phantom power supplied by an audio interface or measurement system.

Check Phantom Power and XLR Cable

Before ordering, verify that your audio interface, AV receiver or measurement system provides phantom power within the 12 V to 52 V range. An XLR cable is required for connection but is not included with the microphone. Ensure your calibration software or real-time analyser supports external measurement microphones for room correction workflows. The unit weighs 0.49 kilograms and measures 14.33 inches wide by 12.83 inches high by 9.06 inches deep.

Bundled Case, Clip and Windscreen Change Portability

The package includes a carrying case, microphone clip and windscreen for safe storage and transport. These accessories let engineers and home audio enthusiasts move the microphone between measurement positions without risk of damage. A calibration file reference is printed on the outer packaging slip; contact the supplier through Amazon if the slip is missing or further assistance is needed.